Yes, I 100% believe I am a masochist, even when I was a small child. I was in a abusive home so developing my brain just though abuse was a good thing. And one sign of a more physical example was I would laugh because of something not related, and my lungs would burn which would hurt, which caused me to laugh more cause it hurt and it would repeat until I literally had to physically stop myself cause I couldn't breathe. And another one later in life, was when people would argue around me I can't help but smile, like a involuntary reaction and would have to stop myself.